Assertion: Chemosensitive area is situated adjacent to l the rhythm centre which ishighly sensitiveo `CO_(2)` and 1 hydrogen ions. Reason: Receptors associated with aortic arch and carotidis artery can recognise changes in `O_(2)" and "H^(+)` concentration and send necessary signals to the rhythm centre for remedial actions.A. If both assertion and reason are true and the reason is the correct explanation of the assertion.B. If both assertion and reason are true but reason is not the correct explanation of the assertion.C. If assertion is true but reason is false.D. If both assertion and reason are false.

Assertion: Chemosensitive area is situated adjacent to l the rhythm ce

1.	Assertion: Chemosensitive area is situated adjacent to l the rhythm centre which ishighly sensitiveo `CO_(2)` and 1 hydrogen ions. Reason: Receptors associated with aortic arch and carotidis artery can recognise changes in `O_(2)" and "H^(+)` concentration and send necessary signals to the rhythm centre for remedial actions.A. If both assertion and reason are true and the reason is the correct explanation of the assertion.B. If both assertion and reason are true but reason is not the correct explanation of the assertion.C. If assertion is true but reason is false.D. If both assertion and reason are false.
Answer» Correct Answer - C Chemosensitive area is situated adjacent to the rhythm. centre which is highly sensitive to `CO_(2)` and hydrogen ions. Receptors associated with aortic arch and carotid artery can recognise changes in `CO_(2)" and "H^(+)` concentrated and send necessary signals to the rhythm centre for remedial actions.